Gang-plow.



A. P. HAWN.

GANG PLOW. APPmcATioN mso sanza. 1912. nsuzwen um. s. ma.

1,289,462. Patented Dec. 31, 1918.

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A; P. HAWN.

GANG PLOW. APPLicATmN man sEPT.2a.1912. aENEwED JAN.

Patented Deo. 31, 1918.

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GANG PLOW. APPLICATIONHLED sEPT.23. 1912. RENEWED JAN. 5.

l 91 B. Patented Dec. 31, 1918.

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A. P. HAWN.

GANG PLOW. APPLlcATIoN FILED sEPT.23, 1912. RENEwED 1A N. 5. 191B. 1,289,462, Patented Dec. 31,1918.

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A v @W ANDREW P. HAWN, OF LAPORTE, INDIANA,

ASSIGNOR, BY DIRECT AND MESNE ASSIGN- MENTS, T0 ADVANCE-RUMELY COMPANY, OF LAPORTE, INDIANA, A CORPORATION OF INDIANA.

GANG-PLOW.

Application filed September 23, 1912, Serial No. 721,746. Renewed January 5, 1918` To all wwm t may concern.'

Be it known that I, ANDREW P. HAwN, a citizen of the United States, residing at Laporte, in the county of Laporte and State of Indiana, have invented a certain new and useful Improvement in Gang-Plows, of which the following is a specification.

My invention relates to improvements in gang plows and is illustrated diagrammatically in the accompanying drawings whereiny Figure l is a plan view; j

Fig. 2 is a section along line 2 2 of Fig. l;

Fig. 3 is a detail side elevation with parts in section on a large scale of the hoisting mechanism shown in Fig. 2 inl a. lifting position;

Fig. 4c is a front elevation of the hoisting mechanism shown in Fig. 8;

Fig. 5 is a detail side elevation of the latch shown in Fig. 3;

Fig. 6, a section along line 6--6 of Fig. l; Fig. 7, a section along line 7-7 of Fig. 6; Fig. 8, a section along line 8-8 of Fig. 6;

and y Fig. 9, a section along line 9-9 of Fig. l.

Fig. l0, a section along line lO-lO of Fig. 9. n

Fig. 11 is a-detail figure similar to a part of Fig. 8, but showing the pulley B12 in its alternative position, with the tooth C engaging the block C11.

The triangular plow frame A is supported upon the wheels A1 A2 A3. The chain or traction connection A4 leads from the front edge of the plow frame to any suitable traction device. The shaft A5 upon which is keyed the wheel A3 is rotatably mounted on the frame A and carries keyed thereon the paddle wheel A2 having the paddles A7 which may be adjusted to penetrate and grip the ground and give traction. The sprocket A8 is keyed to the shaft A5.

The plow beamsB are pivoted each to the inclined rear member of the plow frame and carry the plows B1. B2 B2 are vertical rods slidable through the blocks' B3 B3 in the beams B and limited in their movement by the pinB1 engaging the slot B5.' rThe ground casters B11/on the lower'ends of the rods B2 support them from the ground. The levers Specication of Letters Patent.

Patented Dec. 31, i918.

serial No. 210,575.

B7 are pivoted at the upper ends of the rods B2 having at their outer ends the weights BS, and are connected by means of the chain BD to the plow beams B. The springs B19 interposed between the levers B7 and the rods B2 yieldingly draw the levers downward as indicated. The ropes or cables B10 pass from the inward ends of the levers B7 over the pulleys B11 on the plow frame A to the winding drums or sheaves B12 rotatably mounted on the shaft B13. The shaft B13 is driven responsive to the rotation of the shaft A5 by the sprocket chain C passing over thc sprocket A8 on the shaft A5 and the sprocket C1 on the shaft B13.

The shaft B13 has thereon the ratchet wheels C2 equal in number to the sheaves or pulleys B12 and so arranged that one ratchet wheel is immediately adjacent each of the sheaves. The dogs C3 pivotally mounted on the sheaves B12 are in opposition to the ratchet wheel C2 and yieldingly pressed thereagainst by the springs C4. The latch members C5 are pivoted on the pulleys B12 and have the cam grooves C therein to engage the pin C7 of the dog C3 and have the outwardly projecting controlling fingers C8. The cables B10 are wound about the pulleys B12 and rigidly attached at their end thereto as indicated in Fig. 8. The pulleys B12 have at one point in their periphery the two ratchet teeth C C10 adapted to be engaged by the block C11 on the lever C12, which lever is pivotally mounted on the frame and yieldingly forced toward the pulley B12 by the spring C13. y

It will be noted that the latch member C5 is frictionally held in that position to which it has been moved by the pressure against the finger C8, and therefore when the member C5 is in the position indicated in Fig. 3v there will be no tendency for it to move and permit the dog C3 to engage the ratchet C2 in response to the tension of the spring C4, and it is only when the latch is moved so as to bring the tooth C1 into the upper portion o f the slot C6 that the spring C1 is free to draw the dog into connection with lthe ratchet.

The rod D is slidably mounted on the -lever G12, being held in` position thereon by the clips D1, and is provided with the lug D2 justable in the lever C12 adapted to be yieldingly held against the lower clip D1 by the spring D3 and has at its upper end the contact lug D4 in opposition to the controlling linger CS. The tappet member D5 is mounted on the screw DG adand adapted to be locked in position by the nut D1. The cables DS lead from the upper ends of the lever C12 to the operators stand, so that by pulling on one of the cables he may instantly trip it to raise or lower the desired plow as below described.

I will now describe the means whereby the operator can by one movement so operate the device that the plows will automatically be raised successively from the ground thus leaving the straight ended furrow.

The shaft E is rotatably mounted on the frame A and carries the gear E1 rotatably mounted thereon. The geary E1 is in mesh with the pinion E2 of thev shaft B13. The ratio of the gear to the pinion is such that the pinion E2 will make as many revolutions for one revolution of the gear E1 as there are plows on the frame. The gear E1 carries on its face the flat ratchet gear E3. The lever E4 is pivoted on the pin E5 in the shaft E and is therefore free to swing in a plane containing the shaft but compelled to rotate with it. This lever carries the tooth EG in opposition to the ratchet tooth E3 and is provided with the tension spring E7 located between the free end of the lever E4 and the collar E8 on the shaft E to yieldingly bring the tooth E6 into engagement with the ratchet gear The' lever E9 is pivotally mounted on the frame E being held lyieldingly inward by the spring E8 and carries the outwardly inclined finger E19 projecting into the path of the lever E2'- when in the Vinward position. The cable E10 extends from the upper end of the lever E7 to the operating station. The shaft E` carries the cams E11 aiigularly spaced in opposition to the tappets D5 in such manner that when the shaft E rotates it causes the cams E11 to strike successive tappets D5 and throw successive levers D12 thus successively actuating the plow raising mechanism.

It will be noted that the entire apparatus is driven when tripped or thrown in by the operator responsive to and at a direct speed relation to the forward movement of the plow frame and thus when the tripping shaft E is rotated it, by means of the cams thereon, throws the successive plow lift controlling levers at suoli times that the plows are successively raised to end their furrows all at a common line at right angles to the furrow, thus giving the desired straight ended furrow.

It will be evident that while I have shown in my 'drawings an operative device, still many changes might be made in size, shape and arrangement of parts without departing materially from the spirit of my invention.

I wish, therefore, that my drawings be regarded as in a sense diagrammatic.

The use and operation of my invention are as follows:

Starting with theplows allin the ground and the gang plow moving forwardly driven by any suitable tractor means, the operator will control the plows in the following manner:

If he wishes to raise a single plow, the mechanism being in the position shown in Fig. 11 he will pull on the cord leading to the appropriate plo-w lever C12. This will pull the lever back away from the pulley B12 thus freeing the pulley which previously has been held against rotation by the member C11 the notch C9 therein.

on the lever engaging The weight on the end of the plow lifting it down drawfulcrumed lever B7 will pull hoisting cable and throwing ing up on the the finger C8 on the latch C5 against the spring held finger D4 or lug on the lever C12. This will throw the latch over permitting the pin on the dog to move into the outermost portion of the cam slot CG and permitting the spring C1 to draw the dog()3 into engagement with the'ratchet C2 which is constantly moving in response to therforward movement of the plow. The pulley B12 will then rotate with the dog C3, ratchet C2 and shaft B13 making an approximately complete revolution to lift the plow. When this complete revolution has been made,.the finger C8 on the latch C5 will come in contact with the spring held finger D4 or lug slidable on the lever C12 and this will throw the dog C3 out of engagement with ythe ratchet C2, since the position of the latch with respect to the pulley and dog will be changed to bring the pin C1 on the dog into the near end of the cam slot C6. Meanwhile, the spring-held operating lever C12 will have been pressed inwardlyto permit the member C11 thereon to engage the tooth C1 in the pulley B12 and the plow will thus be held out of thev ground, the hoisting means being free from shaft by virtue of the latch holding the dog When the operator' wishes to drop the plow, he merely pulls on the cord DS leading to the lever C12 thus disconnecting the tooth C10 of the pulley B12 and the block C11 on the lever permitting the plow to drop until the tooth ment with the member C11 without in any way aecting the remainder of the apparatus and leaving it in such position as to be ready for another lifting movement.

1f, however, the operator wishes to operate the plows so that they will successively rise, yhe pulls a single cable leading to the separate controlling lever. This pulls the inclined arm out from under the ratchet the strain laid on the iis C9 comes into engagelever on the upper shaft and permits the teeth of the ratchet lever to engage the ratchet wheel, thus putting the upper or controlling shaft into rotation. As this shaft rotates, the cams carried thereabout successively come into contact with the tappets on the raising or plow controlling levers and throw them successively at the proper times in exactly the same way as if the operator had pulled the controlling cords. The plows will then be successively raised .from the ground and locked in the upper position. The main controlling lever will meanwhile have sprung back to its normal position, and when the latch lever comes around the pulley it slides upward into the inclined arm and the movement of the hoisting shaft will cease.

l/Vhen the operator wishes again to lower the plows he pulls on the hoisting cord again putting into operation the hoisting shaft which in turn drops the successive levers at the proper time, thus returning the plows and hoisting mechanism to their original position and leaving them ready for another cycle of operation at the proper time.

I claim:

l. A gang plow comprising a plow frame, plows carried thereby, means comprising a constantly rotating shaft and a connection between said shaft and each individual plow for raising individual plows at the will of the operator and means for successively completing' the connection between each of the plows and the rotating shaft to successively raise the plows said means comprising a shaft and means for causing it to rotate in response to the rotation of the constantly moving shaft at such velocity that it makes Copies of this patent may be obtained for five cents each, by addressing the one revolution while the constantly moving shaft makes as many revolutions as there are plows to be raised.

2. A hoisting means for plows and the like comprising a constantly rotating shaft, a ratchet wheel thereon, a pulley rotatably mounted thereon, a dog mounted on said pulley in opposition to said ratchet wheel, a latch to control said dog, an actuating finger projecting outwardly from said latch, a controlling lever having a part projecting into the path of said finger, teeth on said pulley, a lock member carried by said lever projecting into the path of said teeth, said lever being vieldingly pressed toward said pulley into the path of said teeth and said linger, means for manually operating said lever to free said latch and said pulley and automatic means for operating said lever for the same purpose.

3. A gang plow comprising a plow frame, plows carried thereby, means comprising a constantly rotating shaft and a connection between said shaft and each individual plow for raising individual plows at the will of the operator and means for successively completing the connection between each of of the plows and the rotating shaft to successively raise the plows, said means comprising a shaft and means for causing it to rotate in response to the rotation of the constantly moving shaft.

In testimony whereof, I aiiiX my signature in the presence of two witnesses this 18th' day of September, 1912.

ANDREV P. HAWN.

Witnesses:

LILLIAN G. Ross, MINNIE SUNDFAR.

Commissioner of Patents,

Washington, D. (2. 

